A tale of the West, a story of the Wild; of three strange comrades,--Whistling Dan of the untamed soul, within whose mild eyes there lurks the baleful yellow glare of beast anger; of the mighty black stallion Satan, King of the Ranges, and the wolf devil dog, to whom their master's word is the only law,--and of the Girl.

Brand's career as an author of Westerns began with this tale set in an otherworldly Wild West, which first appeared as a serial in All-Story magazine and was soon transformed into a film starring Tom Mix.